Year	%
1995	13.36
1997	13.44
2001	18.3
2002	16.86
2003	29.86
2004	29.86
2005	29.49
2006	29.87
2007	15.23
2008	15.23
2009	15.23
2010	15.23
2011	15.51
2012	17.44
2013	16.61
2015	16.44
2016	16.44
2017	16.44